I recently bricked my MSI Twin FrozR II R6950 by flashing it to a 6970, only to realise that you can only "upflash" if you have a reference card, so my PC now won't even POST; fortunately I have the backup BIOS. At the moment, I have an old ATI card in the master PCI-E slot, with the broke R6950 in the secondary slot, so then I can boot into FreeDOS, or Windows safemode. However, in DOS when I do:

I removed all installed VGA drivers in safe mode and now I've got into "real mode" again. So I'm using atiwinflash now, the program that was originally used to flash it to an R6950 in the first place. Here's the result of -ai:

And this is weird... now the flash type is "Unknown", whereas before it was AT something (the ATMEL one). Also you can't use atiwinflash in DOS, can you? :o if you mean atiflash, I was already using the most up to date version

I recently bricked my MSI Twin FrozR II R6950 by flashing it to a 6970, only to realise that you can only "upflash" if you have a reference card, so my PC now won't even POST; fortunately I have the backup BIOS. At the moment, I have an old ATI card in the master PCI-E slot, with the broke R6950 in the secondary slot, so then I can boot into FreeDOS, or Windows safemode. However, in DOS when I do:

Code:

atiflash -unlockrom 1
atiflash -f -p 1 backup.bin

I get the following error:

Code:

ROM not erased
Error 0FL01 - press 1 to continue

Any help is much appreciated, thanks!

Maybe Skip the -unlockrom 1 command. Focus on just getting it un-bricked by replacing your backup. Or go online to techpowerup and grab the original bios from the archives there. http://www.techpowerup.com/vgabios/

No worries. You can never bust a card without being to undo what was done.

Maybe Skip the -unlockrom 1 command. Focus on just getting it un-bricked by replacing your backup. Or go online to techpowerup and grab the original bios from the archives there. http://www.techpowerup.com/vgabios/

No worries. You can never bust a card without being to undo what was done.

Still the same issue without the -unlockrom command It seems even if I do:atiflash -lockrom 1 I still get the same error, so maybe it's not unlocking correctly?

Quote:

Originally Posted by beppe_7

6950's dont have the bios switch by the crossfire connector like the 6970's?

Afraid not

Quote:

Originally Posted by davetheshrew

maybe ask unwinder nicely at the msi afterburner thread to help you, this card is not meant to be touched bios wise.

And thanks Dave I will!

Thanks for all the replies and suggestions again people it's really helpful!

Hi Saul I know this thread is a bit old, but I have just recovered from a similar disaster.
I have a Sapphire 6950 1gb that I tried to unlock the shaders on . BSOD Dead.
I was using winflash and had modded a bios using RBE to unlock extra shaders.
I had saved the bios as a .rom and I think that may have been an issue?
Lucky for me I had just dumped the original bios using the sapphire software Trixx.
in .bin format.
I restarted using my intergrated graphics and tried to flash with winflash.
I keep getting "cannot read Rom " error.
after following this link http://www.techpowerup.com/forums/sh...6&postcount=19 using the command prompt like yourself and the original .bin bios I managed to restore my card.
I tried again foolishly to unlock the shaders , but with no luck.
lucky to still have a working card I guess.